general david petraeus resigns after admitting he had an extramarital affair. happy saturday. let's start at a look at the f. here's meteorologist lisa argen. >> hi there, terry. it is a cold start. in fact, we're are talking about temperatures right at freezing this morning in san francisco. significantly warmer, but if we take a look outside, you will notice that we're down to 32 degrees santa rosa, 34 in napa, 48 downtown with 50 in oakland. so these numbers will continue to drop for the next several hours. we are talking about another chilly start to the day tomorrow. so we've got the cold air mass in place. in fact, a few isolated showers are lingering along the shoreline. we can't rule out that either but we will get into more sunshine in the afternoon. mid-50s to about 60 and a cold evening ahead. it looks like our seven day outlook is featuring more rain showers, as well. terry. >> lisa, thanks a lot. this morning police continue look for a san jose man whose wife was found murdered yesterday inside their home. police are look for this man, troy edward nosenzo. we talk